Langer's Sudoku Assistant

Invalid Sudoku!

Row 8 is invalid. Column 9 is invalid. The bottom right 3x3 Box is invalid. Go back and make a different choice.

 

4
3
1
8
7
1  2  3
4  5  6
7  8  9
6
2
5
7
6
8
5
5
1
3
4
9
2
9
5
6
4
3
8
7
1
3
1
8
3
9
4
7
5
2
4
7
6
1
5
2
8
9
3
9
5
2
7
3
7
4
1
6
5
8
9
1
4
7
2
6
3
   2   
      6
       
3
4
9
8
5
9
1
7
1
   2   
      6
       
7
3
3
9
5
8
4

 

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